Answer:
To answer you question, we need the confidence internals formula, μ±Zc*(σ/); N is the 20 psychology students, 0.5 the desviation standar and 4.3 is the medium based on national data, every fact in years.
Step-by-step explanation:
You need to consult the Zc value, you can find this table attached in this question; for 95%, we have a Zc value of 1.96.
Next step replace values: 4.3±1.96*(0.5/) = 4.3±0.22 (rounding the result)
So, the confidence interval are:
4.08cm≤X≤4.52cm
Answer:
The expression is equivalent to 4 square root 6 divided by 3 root 2 is:
8/3
Step-by-step explanation:
Given expression:
4 square root 6 divided by 3 root 2
square root of 2² = 2 hence,
Common terms in the numerator and denominator cancels each other out
By solving the expression using simple mathematical rules, we got an equivalent expression of
Answer:
Changing value of "d" changes the vertical shift of the cosine graph.
Step-by-step explanation:
Question says to find about how does your cosine graph change when including the d-value.
General equation of cosine function can be given as:
In that formula, value of "d" gives vertical shift.
So changing value of "d" changes the vertical shift of the cosine graph.